Cover for sintering-pans.



F. D. CARNEY & B. V. Mc KAY.

COVER F0 R SINTERING PANS. APPLICATION FILED APR.2I, m4.

1 1 90,5 1 3, Patented July 11, 1916.

4 SHEETSSHEET I- F. D. CARNEY & R. V. McKAY.

COVER FOR SINTERING PANS.

APPLICATION FILED AER.2I, 1914.

Patented July 11, 1916.

4 SHEETSSHEET 2 www.

F. n. CARNEY 1 R. v. McKAY.

COVER FOR SINTERING PANS. APPLICATION FILED APR.21, 1914.

1,190,518. Patented July 11, 1916.

4 SHEETS-SHEET 3v 1 k w M kg q m 1 m F. D. CARNEY 8t R. V. McKAY.

COVER FOR SINTERING FANS.

APPLICATION FILED APR-21 1914.

Patented M13 11. 1916.

www.

4 SHEETSSHEET 4.

M m a fivww N m m NR 8% u y 8W m s o 'V q n $6 ||||L| IL i| IL (I rm: mmms nsrzns Cc PNUTO-LIYND WASHINGTON. a c

FRANK D. CARNEY AND RICHARD V. M KAY, F STEELTON, PENNSYLVANIA.

COVER FOR SINTERING-PANS.

Specification of Letters Patent.

Patented July ft, 191.6.

Application filed Apri121, 1914. Serial No. 833,514.

To all whom it may concern:

Be it known that we, FRANK D. CARNEY and RICHARD V. MoKAY, citizens of the United States of America, residing at Steelton, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Covers for Sintering-Pans; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to cars for charging sintering pans and has for its object to provide a car body having a discharging bottom and carrying a sintering burner that can be moved onto and from the sintering pan by lever system, said lever system preferably actuated by power mechanism carried by the body.

The car has the combined function of a car for carrying the charge to the sintering pan from the loading station, and of a cover for the pan during the ignition of the charge. The car is also provided with means for leveling and compacting the surface portion of the charge in the pan.

The invention also consists in detail of construction hereinafter more particularly described and claimed.

Referring to the drawings, in which like parts are similarly designated Figure 1 is a plan view. Fig. 2 is a side elevation showing the charging car in relation to a sintering pan. Fig. 3 is an end elevation partly in section, and on a larger scale, showing the power and lever mechanism for the various manipulations required for actuating the combined ear and cover. Fig. 4 is a longitudinal section with parts in elevation showing the leveling and compacting mechanism for the surface of the charge. Fig. 5 is a transverse section showing the relation of the leveling compacting device to a pan. Fig. 6 is a plan view of one end of the leveling and compacting carriage. Fig. 7 is an end view thereof, and Fig. 8 is a front elevation thereof.

This invention is a modification of the invention shown and described in our co-pending application Serial Number 822,470, filed March 4., 1914, and this invention illustrates our charging mechanism, as in said oo-pending application, in connection with a well known type of sintering pan A, provided with grate bars B and suitably shaped ends C and D, through which exhaustion takes place to maintain combustion of the material to be sintered on a grate B within said pan. The pan A is mounted in any well known manner, and may be rotated or tipped by any suitable mechanism, the power for which is applied to the pan through the gear wheel E. The structure of this pan forms no part of our invention and is of a type well known in the art. Heretofore such pans have had a removable cover provided with suitable burner mechanism, which cover was raised from or lowered onto the pan by suitable mechanism and in our copending application this was done by raising and lowering a cover capable of carrying a charge independently of the car frame in which the cover was mounted. By the mechanism herein described, the entire device is raised and lowered with respect to the traction wheel axles that practically form the lever fulcrums for the raising and lowering operation. The sintering pan A is mounted between track rails 2 and at such a height between these rails that the cover can be easily and rapidly applied and removed.

The car comprises a suitable body consisting of a lower frame 3 preferably of heavier construction than the remaining portion a of said body. The portion 3 is provided with an outwardly extending bottom flange 5 dimensioned to rest on the top of the pan A. Between the upper and lower edges of the body we provide a series of louvers 6 mounted on shafts 7, preferably, but not necessarily square in cross section and having end trunnions 8 journaled in the portion 3 of the body. The louver directly over the burner 93 has a hiatus, or is discontinuous over the burner to permit this louver to swing down past the burner, as shown at (i Figs. 1 and 5.

Each trunnion on one end of the shafts 7 is provided with an inclined lever 9 pivotally connected at its upper end to an actuating rod 10, so that this rod will be common to all the levers 9 and simultaneously operate them. The widths of the louvers are such that when they are turned down into their dumping or vertical position their edges will be substantially on a line with theloweredges of the body, thereby enabling them to act as leveling devices if desired in lieu of the leveling device hercinafter described, when the car is moved to and fro a distance substantially equal to that between two louvers 6.

At both ends of the body portion 3 and onto each side thereof, we bolt or otherwise secure, trunnion blocks 11 on whose trunnions 12 are mounted links or short levers 13 that carry axles 14, 14 on which are the traction wheels 15. On these axles are mounted links 16, whose upper forked ends 16 are pivotally connected at 17 to levers l8 and 19. The levers 18 are pivoted at the forward end of the car on the pivots 20 secured to the body, and the levers 19 are similarly pivoted at the opposite end of the car on the pivots 21.

There is one lever 18 and one lever 19 at each side of the body. Both levers on both sides are inclined to one another and cross substantially over the middle of the car, the lever 18 being considerably longer than the lever 19 and extending more or less beyond the rear end of the body of the car. The two levers are slidably connected together at their crossing point by a loop 22 having anti-friction rollers 23 on which the levers slide, as the toggle arrangement formed by such levers is moved to raise and lower the car when simultaneously operating the free ends of both the levers 18 extending beyond and above the loops 22. The free ends of levers 18 are connected across the car by a rod 24. This rod passes through a pair of links 25, Figs. 1 and 2, pivoted at 26 to a standard 27 pivotally connected at 28 to an operators platform 29. This platform 29 is carried by structural iron supports. 30 secured to. the body portion 4 by'rivets 31 or otherwise. The sides of this platform support, preferably, but not necessarily, ex-

tend only along a portion of the car body as shown in Fig. 2. The platform 29 and its supports 30 extend sufliciently back of the 7 rear axle to provide space for various mechanisms and for the operator. Above this platform and extending across the same is mounted a main driving shaft 32 having a gear wheel 33 on one end thereof with which meshes a pinion 34 of an electric motor 35 r of any desired construction. 'This motor is supplied with current'through a trolley 36 and a suitable controller 106, from an over head line. 7

On the main driving shaft 32 isa winding drum 37 having a rope38 that passes over a pulley 39 mounted on a rod 40 secured between the upper ends of the pivoted standards 27. The end of this rope is connected to rod 24. The drum 37 is connected to the shaft 32 by a friction clutch 41 that is operated by a rod 42, a bell crank lever 43, a link 44, and a hand lever 45. The rope drum 37 is provided with a hand brake drum 46, the band of which is connected to a short lever 47 on a rod 48 mounted between the platform 29, said rod being actuated by a foot lever 49.

The power shaft 32 is provided with a sprocket wheel 50 capable of being clutched to the shaft by means of a friction clutch 51 actuated by a bell crank lever 52, a link 53, and a hand lever 54. The sprocket wheel 75 50 is connected by a chain 55 to a sprocket wheel 56 on the traction wheel axle 14'', whereby the car is propelled. The rod 10 by which the louvers are actuated is connected by a rope 57, wound on a drum 58, provided with a band brake drum 59 and a friction clutch 60 for connecting said drums to the shaft 32. The clutch 60 is actuated by a rod 61, Fig. 3, a bell crank 62, a link 03, and a hand lever (34. The brake band on drum 59 is actuated by a lever on a rod 66 to which is connected a foot-lever 67. The portion 3 of the body is provided with a guide way in the form of a groove 68 in each of its sides, that is continued at (38 into box-like extensions or ends 3 on the portion 3 of the cover. In these grooves travels a carriage 69, more clearly shown in Figs. 6, 7, and 8. This carriage comprises two sliding blocks 70 connected at each end to leveler bars 71, preferably, but not necessarily rectangular in cross section. Between the leveler bars 71 and mounted to rotate in the blocks 7 O is a compacting roller 72 of somewhat larger diameter than. the vertical depth of the leveler bars 70, as more clearly shown in Fig. 8. Each block 70 is provided'at its two ends with an car 73 to one of which is connected one end of a rope 74 that passes over guide pulleys 75, 76, and 77, and thence around a drum. 7 8 on the shaft 32 from whence the rope passes to the opposite end of the block 70. This drum is provided with a brake drum 79 and a friction clutch 80. The companion block 70 in the groove 68 on the opposite side of the car is similarly connected by means of a rope 74 wound on drum 78 that is provided with a like brake drum 79 and like friction clutch 80 1115 The two clutches 80 and 80 are connected by rods 81 and 81 to bell-cranks 82 and 82, both of which are connected to a single link 83 and are operated from a single hand lever 84 so that the clutches 80 and 80 will be simultaneously operated to connect or disconnect the drums 74 and 74 to the driving shaft 32. The brake band of the drums 79 and 7 9 are connected to levers 85 and 85 respectively on a shaft-86 mounted beneath the platform 29, which shaft is actuated by a foot lever 87 whereby the operation of this lever 87 will simultaneously actuate both brakes. On the platform 29 is mounted an electrocompressor receiving its current from the trolley 25 or otherwise and is of any type. This compressor delivers compressed air by pipe 90 to an air tank 91 from which the air is discharged by a pipe 92 to the burner 93, which burner is of the type described in United States Patent No. 1,064,- 314, granted June 10, 1913. The air through this pipe 92 is controlled by a valve indicated at 94 and actuated by a rod 95 that is connected to a hand lever 96. On the platform 29 is also mounted an oil tank 97 maintained under air pressure by a pipe 98 connecting the air and oil tanks and provided with a cut off valve 99. The oil is supplied from tank 97 through a pipe 100 to the burner and is controlled by a valve indicated at 101 and operated by a rod 102, a pivoted lever 103, a link 104, and a hand lever 105.

The operation will be as follows: Assuming the louvers to be closed, brake 59 being set, the leveler held within one of the extensions (38 of the groove 68, as shown in Fig. 4 by the set brakes 79 and 7 9, and the body 3, 4, held raised in a position shown in Fig. 2, the rope 38 holding the lever 18 in its highest position with brake 46 set, the car is then loaded at the loading plant with material to be sintered either flue dust or ore fines mixed with sufficient carbonaceous material to effect sintering or other suitable fine material or ore containing sufficient material. capable of acting as a fuel and preferably having a moisture content sufficient to impart to the material an adhesion similar to that of molders sand. The clutch 51 is then engaged and the car is run on track 2 over the top sintering pan A, the clutch 51 is released by its actuating lever 54 and the car stops in proper position. Foot brake lever 49 is then released to release the brake band 46 and drum 37, thereby slackening rope 38 and permitting the body 34 and other parts carried by it to drop under its load onto the pan. The levers 18 and 19 being mounted on pivots 21 and their shorter lever arms being connected by link 16 to axle 14, and levers 13 to trunnions 12, this assemblage practically forms a parallel motion device, so that all the mechanism drops a short distance with respect to axles 14 until the body portion 3 seats on the pan. Thereupon foot lever 67 is released to release rope drum 58 that controls the louvers 6 thereby permitting the louvers to drop under the load of material resting on them. Clutch 59 is then actuated by hand lever 64 to again raise the louvers after they have discharged their load, brake 59 is then set and the clutch 60 released to hold the louvers in raised position. Brakes 79 and 7 9 are then released and clutches 80, 80 engaged to operate the ropes 74 and 74 of the leveler device and move the leveler to and fro over the load deposited in the pan. The rectangular bar r 71 of the carriage 69 strikes off the peaks off the longitudinal hills and deposits them in the valleys, whereupon the roller 72 follows on the leveled surface and compacts it suffieiently to permit of uniform sintering, thereby insuring a uniform surface distribution of air through the mass. The clutches 80 and 80 are then released when the leveler carriage has moved into one or the other extension 68 of the grooves 68 after the surface of the charge has been deemed sufficiently compacted. Brakes 79 and 79 are then set and clutches 80 and 80 released, whereby the carriage is held in one or the other of said extensions 68*. The burner 93 is then lighted to start the sintering, the air supplied to the burner from tank 91 being controlled either by the valve 94 or the louvers 6, or both, or this air supply can be relatively increased or diminished by controlling a supply of oil to the burner through pipe 100 from the oil tank 97 by means of a valve 101. After the sintering has been started, the oil and air valves 101 and 94 are closed, clutch 41 is thrown into operation to actuate the winding drum 37 and wind up rope 38, thereby raising the mechanism from the pan, after which brake 46 is set and clutch 41 released, whereupon clutch 51 may be actuated to drive traction wheels.

We claim:

1. The combination with a cover for sintering pans, and wheeled axles, of levers pivotally connected on the cover and connected to the axles for raising and lowering the cover, said levers being connected together for simultaneous operation, whereby the cover can be raised and lowered from a single operating position.

2. The combination with a cover for sintering pans, of wheeled axles, links connecting the axles to the cover and levers pivoted on the cover, and links connecting one end of the levers to the axles.

3. The combination with a cover for sintering pans, and wheeled axles, of a pair of levers pivotally mounted on each end of said cover, the two levers on each side of the cover arranged to cross each other, a sliding connection between the levers at their crossing points, and a link for connecting one end of each lever to an axle.

4. The combination with wheeled axles, of a sintering pan cover between the axles, links connecting the cover and axles, levers pivoted on the cover and links connecting the levers and axles.

5. The combination with a sintering pan cover, wheeled axles, lever mechanism for raising and lowering the cover, of a pivoted standard carried by the cover, power mechanism also carried by the cover, and a fiexible connection between the lever mechanism and power mechanism and guided over said standard.

6. The combination with a sintering pan cover, wheeled axles, and lever mechanism for raising and lowering the cover, of power mechanism carried by the cover, mechanism actuated by the power mechanism for raising and lowering the cover with respect to said pan, and propelling mechanism also actuated from the power mechanism for propelling the cover and axles.

7. The combination with a sintering'pan cover and wheeled axles, of mechanism for raising and lowering the cover with respect to said axles, power mechanism carried by the cover and means operated from the power mechanism to actuate the raising and lowering mechanism and means also actuated from the power mechanism to propel the cover.

8'. The combination with a sintering pan cover, of a platform carried thereby, power mechanism, and an oil tank and air tank on the platform, a louver mechanism forming a charge supporting bottom for the cover, wheeled axles, links between the axles and cover, lever mechanism pivoted on the cover, and connected to the axles, a burner beneath the louver mechanism and connected to said oil and air tanks, a leveling device traversable in the cover beneath said bottom and burner, means to propel one of the axles from said power mechanism, means to operate the lever mechanism from the power mechanism, means to actuate the bottom from the power mechanism and means to traverse said device from the power mechanism.

9. The combination with a cover for sintering pans, of wheeled axles for said cover, levers whose fulcrum points are carried by said axles, pivotal connecting means between the levers and cover, said levers connected together for simultaneous operation, two of said levers having extensions, and mechanism carried by said cover for acting on said extensions for simultaneously actuating said levers.

In testimony that we claim the foregoing as our invention, we have signed our names in presence of two subscribing witnesses.

F. D. CARNEY. RICHARD V. MoKAY.

Vitnesses:

F RANK A. ROBBINS, J12, CHAS. R. HoLToN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

